Mathematical evidence indicates that our universe is flat, but it could be infinitely big, as well. You can figure out if an ...

There's no shortage of round celestial objects in our universe. Planets, moons and stars all exhibit lovely spherical shapes.

Scientists have unlocked one of the solar system's many secrets from an unexpected source: a planetarium show.

The fact that there are two stars lurking at the heart of this butterfly-shaped nebula will be crucial, as we shall see. We can't see those two protostars in the JWST's Near-Infrared Camera image ...

Not surprisingly, Venus is nicknamed “Morning Star” for when it’s visible before ... but its crescent shape gets larger. It's now about a quarter-lit. It's bright largely because of its ...

and bright green hues take the shape of wings that tower over the rock pyramids of the Arctic Henge in Iceland. Paul Haworth created this entrancing image of radial stars above the ruins of an old ...